After Stan is arrested for tax evasion, Grace and Karen timidly visit him in prison. Grace is so moved to help her worried friend that she moves right into Karen's deluxe apartment-in-the-sky, where she becomes a demanding guest who's soon hooked on servants, bubble baths and an extravagant lifestyle. Meanwhile, as Stan's attorney, Will struggles with stage-fright when he babbles on during a TV news interview, so Jack convinces him to polish his communication skills by attending an acting class ruled by an imperious teacher.

At the gym, Will spies another guy who looks maddeningly familiar, while Jack gets a workout as he keeps repeating one of his nonsensical catchphrases in hopes of seeing it become popular among the sweat set. Meanwhile, Grace gets some bad advice from Karen when she seeks a loan to expand her company so she stoops to asking her wealthy employee herself for the money—even if she has to resort to drastic measures to get the point across.

A deceiving, but flattering, newspaper photo makes Grace look more "endowed" than she really is and gains her the attention of a former high school heartthrob who was never one to keep abreast of her before. Jack is destroyed to learn that Will had a fling with Walter, Jack's ex-boyfriend.

Will and Grace are shocked to learn that Jack never told his mother he was gay and encourage him to open up to her at Thanksgiving. The evening brings a revelation for Jack as well: his father isn't who he thinks it is.

In a flashback to Thanksgiving 1985, coed Grace invites her college boyfriend Will home to meet her family, but their romantic relationship swerves dramatically when a conflicted Will phones a teenaged Jack for some crucial advice. Unfortunately, Will and an angry Grace end up temporarily estranged when he blurts out the truth and she orders him out of the house -- and her life.

Will and Jack appear on Today to protest NBC for cutting a gay kiss out of an eagerly-waited sitcom episode. Will is frustrated with Jack on how much he wanted to see that kiss and kisses him. Elsewhere, Grace confides in Karen about dumping her boyfriend.

In a flashback to Thanksgiving 1985, coed Grace invites her college boyfriend Will home to meet her family, but their romantic relationship swerves dramatically when a conflicted Will phones a teenaged Jack for some crucial advice. Unfortunately, Will and an angry Grace end up temporarily estranged when he blurts out the truth and she orders him out of the house -- and her life.

Will reluctantly decides to use a birthday gift certificate from Grace to consult a psychic about his future and encounters an absent-minded fortune teller whose frighteningly personal predictions leave him reeling. Elsewhere, a guilt-ridden Grace hires a lackadaisical waiter whom she helped to get fired while Jack, who forever idolizes music, TV and film legend Cher, stumbles onto the real deal and meets the Oscar winner herself -- whom he mistakes for a drag queen.

The culmination of eight seasons ends tonight with a one-hour series finale - will Will and Grace raise a child together and find ultimate happiness? Will Jack find anyone that loves him as much as he loves himself? Will Karen find true happiness with the absence of Stan? All these questions and more will be answered as this groundbreaking series concludes eight amazing seasons.

A wary Grace tells Will of her romance with his brother, Sam, and unleashes an avalanche of resentment. While Will wrestles with sibling rivalry, Karen helps Jack come to grips with turning 30 by hiring him as her personal assistant and leads Grace to sort through her true feelings for the Trumans.

After stalking actor Kevin Bacon, Jack lands his dream job when the unsuspecting celebrity hires him as his personal assistant and immediately assigns him to find out who's been harassing him. Elsewhere, while Will and Grace wait for the right color to appear on their home pregnancy test, Grace is visited by a handsome doctor who makes her a tempting offer. In addition, Karen looks for a way out of her on-again, off-again relationship with the courtly and irresistible suitor Lionel.

Grace contemplates having an affair with a married man. Elsewhere, Jack begins new career as a host of his new talk show "Jack Talk." Will gets some advice from Malcolm and tries to hide from Karen the fact that Stan is alive.

Karen, Will, Jack, and Grace go on a trip in Karen's yacht to sprinkle Stan's ashes into the Caribbean while Leo is flying to Guatamala with an atractive co-worker. While Karen sprinkles Stan's ashes she finds Lorraine has been stowing on board. While Karen and Loraiinne fight, Will and Jack get drunk. Lorainne pushes Karen off the board and Rosairo jumps off after her. The next morning Grace finds Leo's bag with a letter from his co-worker Danni saying that she wants Leo. Will wakes up in bed naked with a hangover and a naked Jack in the bed with him. Meanwhile Karen and Rosairo are stuck on a cargo boat.

The "Sound of Music Sing-Along" has come to town and no one is more excited than Grace. She plans for her and Will to attend the musical in character-like style by dressing up in costumes.

An exasperated Grace tries to mediate between a resentful Will and her sloppy, free-spirited boyfriend Nathan when Nathan moves in while Jack is in a royal dither as he plans to finally meet his unseen father face-to-face. However, Grace grows nervous when the two polar-opposite men find some common ground and she ponders how a devoted boyfriend might affect her equally important relationship with her longtime buddy Will. After settling his father issues, Jack later gets the surprise of his life in a most unexpected fashion.

An exasperated Grace tries to mediate between a resentful Will and her sloppy, free-spirited boyfriend Nathan when Nathan moves in while Jack is in a royal dither as he plans to finally meet his unseen father face-to-face. However, Grace grows nervous when the two polar-opposite men find some common ground and she ponders how a devoted boyfriend might affect her equally important relationship with her longtime buddy Will. After settling his father issues, Jack later gets the surprise of his life in a most unexpected fashion.

In the middle of her divorce proceedings, Karen learns that ex-husband Stan has suddenly passed away, and the funeral becomes a contest of wills between Karen and her British rival, and a free-for-all when the will is read for everyone who ever felt deserving, such as Will. Meanwhile, Grace is shocked when recently returned husband Leo is called back into service by Doctors Without Borders and asks her to make the trip with him to Guatemala.

When Vince's mother injures her leg and is unable to make her traditional Italian Thanksgiving, Will comes to the rescue by offering to make his own special dinner, but Vince's mother refuses to give Will any credit. Meanwhile, Jack gives Vince's sister Ro a few pointers on a big secret she is keeping from her family and fiancé. Meanwhile, Grace and Karen get very cozy with Vince's much younger cousin.

Karen celebrates her birthday with some of New York's crème de la crème, but the festivities turn sour when she ends up crammed in the bathroom with Grace, Will and Jack, who have all embarrassed themselves at the party.

Will must decide whether to support Grace's independence by encouraging her to take an apartment across town or selfishly keep her close by inviting her to share his living space. The decision may be made easier, however, by the nagging presence of Will's current roommate, Jack, and his parrot, Guapo. Meanwhile, Karen and Jack meet for the first time and find each other to be fabulous.

When Grace moves in with Will, she complains that the guest bathroom is too small and suggests knocking the common wall down to create one big master bathroom, which results in Will having to confront his own issues on change and his ability to have a successful relationship. Meanwhile, Jack and Karen bear the brunt of Will and Grace's displaced anger.

Will and Grace plan to spend a serious Halloween together watching Ingmar Bergman movies at home--until Harlin drops off his over-eager kids at their place when he's called away on business. Meanwhile, Jack convinces Karen to accompany him to the downtown parade where she becomes an honorary drag queen.

A "surprise" birthday party for Jack astounds Will when his estranged older brother Sam turns up at the fete at Grace's invitation. Not only do sparks fly between the brothers, but electricity of a different sort crackles between Grace and Sam. Meanwhile, Karen flashes her platinum card for Jack as the pair shop until they drop at a boutique where the snooty salesmen previously had snubbed Jack.

Stunned to find they have a 'date' with the same guy, Will and Grace compete for the affections of a handsome, charming new neighbor at dinner, and even Jack's finely-tuned gaydar can't pick up his preference. Meanwhile, Karen contemplates firing her driver and in a twist of irony asks Grace to role-play firing an incompetent employee.

The gang retreats to a cabin in Vermont for the weekend, where Grace rekindles romance with an old flame and tries to hide the fling from Will, who's pining on the eve of his would-be anniversary. Meanwhile, Karen's culinary efforts go up in smoke, as does Jack's attempt to cheer Will by dragging him to a gay pub, where the town barber-turned-hair stylist sidles up to him.